Fresh (non cached) dig

[Jeremy C. Reed]

On Mon, 5 Jan 2009, Stephen Ward wrote:

> On Mon, 05 Jan 2009 16:24:04 +0000, Chris Thompson wrote:
> 
> > On Jan 5 2009, John Wobus wrote:
> > 
> >>                                    [...] There is no nameserver
> >>                                    operation
> >>that dig could do to tell a caching nameserver to act differently for
> >>one query.  You could clear the nameserver's cache, or even clear the
> >>one name you are interested in out of the cache.
> > 
> > You can use +norecurse and check whether the AA bit is set in the reply.
> > Even quite old versions of BIND will not set the AA bit in the response
> > if the answer is from the cache, in this case.
> 
> Thanks for this Chris. I never knew that. And Todd, that is just what the 
> doctor ordered!

Do some tests with data already cached. And watch the TTL of the records 
as you do multiple same digs.


  Jeremy C. Reed
  ISC Sales & Support Engineer